<!DOCTYPE html>
<html>
<!--
Copyright 2010 The Closure Library Authors. All Rights Reserved.

Use of this source code is governed by the Apache License, Version 2.0.
See the COPYING file for details.
-->
<head>

<script type="text/javascript" src="../../../base.js"></script>
<script type="text/javascript">

goog.require('goog.dom');
goog.require('goog.dom.TagName');
goog.require('goog.events');
goog.require('goog.net.xpc.CrossPageChannel');

</script>
<script type="text/javascript">

var channel;
var logEl;


/**
 * Writes a message to the log.
 * @param {string} msg The message text.
 */
function log(msg) {
  logEl || (logEl = goog.dom.getElement('log'));

  var msgEl = goog.dom.createDom(goog.dom.TagName.DIV);
  msgEl.innerHTML = msg;
  logEl.insertBefore(msgEl, logEl.firstChild);
}


goog.events.listen(window, 'load', function() {
  // Get the channel configuration from the URI parameter.
  var cfg = goog.json.parse(
      (new goog.Uri(window.location.href)).getParameterValue('xpc'));

  // Create the channel.
  channel = new goog.net.xpc.CrossPageChannel(cfg);
  channel.registerService('log', log);
  channel.connect(function() {
    log('Channel connected.');
  });
});

</script>
<style type="text/css">
body {
  background-color: #ddffff;
  font-family: arial,verdana;
  font-size: 12px;
}
</style>
</head>
<body>

<h3><script type="text/javascript">document.write(location.href.replace(/\?.*/,'?...'))</script></h3>

<p>
<input type="text" id="msgInput" value="Hello from the iframe."
    style="width:250px">
<input type="button" value="Send" onclick="
    channel.send('log', goog.dom.getElement('msgInput').value)">
</p>

<div id="log" style="border: 1px #000 solid"></div>


</body>
</html>
